Ghost in the Shell 
One of the best soundtracks of the PS1 era, had lots of top techno producers such as Hardfloor and Dave Angel
Dave Angel? Holy shit! Totally piques my interest now, is the game itself any good or is it licensed anime pap?
I havent played since it came out (great rental, finished it in a night) and I was like 12 years old but I remember it being a pretty solid action shooter (cool moves like sliding up walls, firing tons of lock on missiles at once etc.) and a totally stellar soundtrack (Wetsbam and Joey Beltram have tarcks in the game also, so its sort of a pretty solid who's who of classic techno. So yeah it might be worth playing now, although its probably dated real bad now like 99% of PS1 games.